Is Now Part of
To learn more about ON Semiconductor, please visit our website at
www.onsemi.com
Please note: As part of the Fairchild Semiconductor integration, some of the Fairchild orderable part numbers
will need to change in order to meet ON Semiconductor’s system requirements. Since the ON Semiconductor
product management systems do not have the ability to manage part nomenclature that utilizes an underscore
(_), the underscore (_) in the Fairchild part numbers will be changed to a dash (-). This document may contain
device numbers with an underscore (_). Please check the ON Semiconductor website to verify the updated
device numbers. The most current and up-to-date ordering information can be found at www.onsemi.com. Please
email any questions regarding the system integration to Fairchild_questions@onsemi.com.
ON Semiconductor and the ON Semiconductor logo are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries. ON Semiconductor owns the rights to a number
of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of ON Semiconductor’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent-Marking.pdf. ON Semiconductor reserves the right
to make changes without further notice to any products herein. ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liability
arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. Buyer is responsible for its products and applications using ON
Semiconductor products, including compliance with all laws, regulations and safety requirements or standards, regardless of any support or applications information provided by ON Semiconductor. “Typical” parameters which may be provided in ON
Semiconductor data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s
technical experts. ON Semiconductor does not convey any license under its patent rights nor the rights of others. ON Semiconductor products are not designed, intended, or authorized for use as a critical component in life support systems or any FDA
Class 3 medical devices or medical devices with a same or similar classification in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use ON Semiconductor products for any such unintended
or unauthorized application, Buyer shall indemnify and hold ON Semiconductor and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out
of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that ON Semiconductor was negligent regarding the design or manufacture of the part. ON Semiconductor
is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.
www.fairchildsemi.com
KA34063A
SMPS Controller
Features
Description
•
•
•
•
The KA34063A is a monolithic regulator sub system
intended for use as DC to DC converter. This device
contains a temperature compensated bandgap reference, a
duty cycle control oscillator, a driver, and a high current
output switch. It can be used for step down, step up or
inverting switching regulators as well as for series pass
regulators.
Operation From 3.0 to 40V Input
Short Circuit Current Limiting
Low Stand-by Current
Output Switch Current of 1.5A Without External
Transistors
• Output Voltage Adjustable
• Frequency of Operation From 100Hz to 100kHz
• Step-up, Step-Down or Inverting Switching Regulators
8-DIP
1
8-SOP
1
Internal Block Diagram
DRIVE
COLLECTOR
8
1.25V
REF
VTG
COMP
5
SWITCH
COLLECTOR
1
S
Q
COMPARATOR
INVERTING
INPUT
Q2
Q1
4
IPK SENSE
GND
RD
7
OSCILLATOR
TIMING
CAPACITOR
R
3
* VCC(6)
2
Rev. 1.0.1
©2002 Fairchild Semiconductor Corporation
KA34063A
Absolute Maximum Ratings
Parameter
Symbol
Value
Unit
VCC
40
V
VI(COMP)
-0.3 ~ +40
V
Switch Collector Voltage
VC(SW)
40
V
Switch Emitter Voltage
VE(SW)
40
V
VCE(SW)
40
V
VC(DR)
40
V
ISW
1.5
A
TSTG
-65 ~ +150
°C
Supply Voltage
Comparator Input Voltage Range
Switch Collector To Emitter Voltage
Driver Collector Voltage
Switch Current
Storage Temperature Range
Electrical Characteristics
(VCC = 5.0V, TA = 0°C to +70°C , unless otherwise specified)
Parameter
Symbol
Conditions
Min.
Typ. Max.
Unit
OSCILLATOR
ICHG
VCC = 5 to 40V, TA = 25°C
22
31
42
µA
Discharging Current
IDISCHG
VCC = 5 to 40V, TA = 25°C
140
190
260
µA
Oscillator Amplitude
V(OSC)
TA = 25°C
0.5
-
V
Charging Current
Discharge to Charge Current Ratio
Current Limit Sense Voltage
K
VSENSE(C.L)
V7 = VCC, TA = 25°C
5.2
6.1
7.5
-
ICHG = IDISCHG
TA = 25°C
250
300
350
mV
OUTPUT SWITCH
Saturation Voltage 1 (Note1)
VCE(SAT)1
ISW = 1.0A
VC(driver) = VC(SW)
-
0.95
1.3
V
Saturation Voltage 2 (Note1,2)
VCE(SAT)2
ISW = 1.0A,
VC(driver) = 50mA
-
0.45
0.7
V
DC Current Gain (Note1,2)
GI(DC)
ISW = 1.0A,
VCE = 5.0V, TA = 25°C
50
180
-
-
Collector off State Current (Note1)
IC(OFF)
VCE = 40V, TA = 25°C
-
0.01
100
µA
1.21
1.24
1.29
V
COMPARATOR
Threshold Voltage
-
VTH
Threshold Voltage Line Regulation
∆VTH
VCC = 3 to 40V
-
2.0
5.0
mV
Input Bias Current
IBIAS
VI = 0V
-
50
400
nA
VCC = 5 to 40V, CT = 0.001uF
V7 = VCC, V5>VTH
pin2 = GND
-
2.7
4.0
mA
TOTAL DEVICE
Supply Current
ICC
Note :
1. Output switch tests are performed under pulsed conditions to minimize power dissipation.
2. These parameters, although guaranteed, are not 100% tested in production.
2
KA34063A
Typical Performance Characteristics
Temperature (°C)
Figure 1. Temperature Drift (VTH)
3
KA34063A
Mechanical Dimensions
Package
Dimensions in millimeters
#4
#5
1.524 ±0.10
0.060 ±0.004
0.46 ±0.10
#8
2.54
0.100
9.60
MAX
0.378
#1
9.20 ±0.20
0.362 ±0.008
(
6.40 ±0.20
0.252 ±0.008
0.018 ±0.004
0.79
)
0.031
8-DIP
5.08
MAX
0.200
7.62
0.300
3.40 ±0.20
0.134 ±0.008
+0.10
0.25 –0.05
+0.004
0~15°
4
0.010 –0.002
3.30 ±0.30
0.130 ±0.012
0.33
MIN
0.013
KA34063A
Mechanical Dimensions (Continued)
Package
Dimensions in millimeters
8-SOP
MIN
#5
6.00 ±0.30
0.236 ±0.012
8°
0~
+0.10
0.15 -0.05
+0.004
0.006 -0.002
MAX0.10
MAX0.004
1.80
MAX
0.071
3.95 ±0.20
0.156 ±0.008
5.72
0.225
0.41 ±0.10
0.016 ±0.004
#4
1.27
0.050
#8
5.13
MAX
0.202
#1
4.92 ±0.20
0.194 ±0.008
(
0.56
)
0.022
1.55 ±0.20
0.061 ±0.008
0.1~0.25
0.004~0.001
0.50 ±0.20
0.020 ±0.008
5
KA34063A
Ordering Information
Product Number
Package
KA34063A
8-DIP
KA34063AD
8-SOP
Operating Temperature
0 ~ +70°C
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY
PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY
LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER
DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES
OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR
CORPORATION. As used herein:
1. Life support devices or systems are devices or systems
which, (a) are intended for surgical implant into the body,
or (b) support or sustain life, and (c) whose failure to
perform when properly used in accordance with
instructions for use provided in the labeling, can be
reasonably expected to result in a significant injury of the
user.
2. A critical component in any component of a life support
device or system whose failure to perform can be
reasonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
www.fairchildsemi.com
9/10/02 0.0m 001
Stock#DSxxxxxxxx
2002 Fairchild Semiconductor Corporation
ON Semiconductor and
are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries.
ON Semiconductor owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of ON Semiconductor’s product/patent
coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marking.pdf. ON Semiconductor reserves the right to make changes without further notice to any products herein.
ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liability
arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.
Buyer is responsible for its products and applications using ON Semiconductor products, including compliance with all laws, regulations and safety requirements or standards,
regardless of any support or applications information provided by ON Semiconductor. “Typical” parameters which may be provided in ON Semiconductor data sheets and/or
specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer
application by customer’s technical experts. ON Semiconductor does not convey any license under its patent rights nor the rights of others. ON Semiconductor products are not
designed, intended, or authorized for use as a critical component in life support systems or any FDA Class 3 medical devices or medical devices with a same or similar classification
in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use ON Semiconductor products for any such unintended or unauthorized
application, Buyer shall indemnify and hold ON Semiconductor and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and
expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such
claim alleges that ON Semiconductor was negligent regarding the design or manufacture of the part. ON Semiconductor is an Equal Opportunity/Affirmative Action Employer. This
literature is subject to all applicable copyright laws and is not for resale in any manner.
PUBLICATION ORDERING INFORMATION
LITERATURE FULFILLMENT:
Literature Distribution Center for ON Semiconductor
19521 E. 32nd Pkwy, Aurora, Colorado 80011 USA
Phone: 303−675−2175 or 800−344−3860 Toll Free USA/Canada
Fax: 303−675−2176 or 800−344−3867 Toll Free USA/Canada
Email: orderlit@onsemi.com
© Semiconductor Components Industries, LLC
N. American Technical Support: 800−282−9855 Toll Free
USA/Canada
Europe, Middle East and Africa Technical Support:
Phone: 421 33 790 2910
Japan Customer Focus Center
Phone: 81−3−5817−1050
www.onsemi.com
1
ON Semiconductor Website: www.onsemi.com
Order Literature: http://www.onsemi.com/orderlit
For additional information, please contact your local
Sales Representative
www.onsemi.com